Question

if sinA= 3/5 and cosA=4/5, find the value of sin square A+ cos square A​

Answer 1

Answer:

sin square A+cos square A

=3/5^2+4/5^2

=9/25+16/25

=25/25

=1

Answer 2

sinA= 3/5

cosA=4/5

sin^2A = (3/5)^2 = 9/25

cos^2A = (4/5)^2 = 16/25

sin^2A + cos^2A = 9/25 + 16/25

sin^2A + cos^2A = 25/25

sin^2A + cos^2A = 1

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